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Finding the Fourth Proportional to 5,483.90, 8,226.97 and 1,786.15

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Solution

The fourth proportional to 5,483.90, 8,226.97 and 1,786.15 is: 2,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,483.90 : 8,226.97 = 1,786.15 : x
  2. Step 2: Convert to fraction form
    5,483.90/8,226.97 = 1,786.15/x
  3. Step 3: Cross multiply
    5,483.90x = 8,226.97 × 1,786.15
  4. Step 4: Simplify right side
    5,483.90x = 14,694,608.28
  5. Step 5: Solve for x
    x = 14,694,608.28/5,483.90
  6. Step 6: Final answer
    x = 2,679.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.